{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["river", "area", "exact location"], "input": "-DOCSTART- Preliminary data suggests Harvey will produce the greatest total amount of flooding rainfall in the United States , ever . Details coming ."}
{"river": [], "area": [], "exact location": []}